Hi good day! I used the Amex Gcash feature to buy from google play last week and was able to use it on the trial period. My subscription ended on Sept. 2 and I was only able to renew it last Friday Sept. 5 (valid until 9-5-15) because of my schedule. It said that the transaction is successful and the credit was deducted but after 2 days I still can't purchase from GP saying that my Amex account is declined, I tried reentering my amex number and sec code but to no avail. Hope you can fix this thanks!